Powertrain Codes

P0855

Technical Definition:

Drive Switch Input Circuit High

Trouble Code: P0855
Address: 0x0855
System: Powertrain
Subsystem: Transmission Controls

Technical Description:

Possible Causes:

Possible Symptoms:

Drive Switch Input Circuit High

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P0856

Technical Definition:

Traction Control Input Signal

Trouble Code: P0856
Address: 0x0856
System: Powertrain
Subsystem: Transmission Controls

Technical Description:

Possible Causes:

Possible Symptoms:

Traction Control Input Signal

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P0851

Technical Definition:

Park Natural (P/N) Switch Input Circuit Low

Trouble Code: P0851
Address: 0x0851
System: Powertrain
Subsystem: Transmission Controls

Technical Description:

Possible Causes:

Possible Symptoms:

Park/Neutral Switch Input Circuit Low

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P0852

Technical Definition:

Park Natural (P/N) Switch Input Circuit High

Trouble Code: P0852
Address: 0x0852
System: Powertrain
Subsystem: Transmission Controls

Technical Description:

Possible Causes:

Possible Symptoms:

Park/Neutral Switch Input Circuit High

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P0850

Technical Definition:

Park Natural (P/N) Switch Input Circuit

Trouble Code: P0850
Address: 0x0850
System: Powertrain
Subsystem: Transmission Controls

Technical Description:

Possible Causes:

Possible Symptoms:

Park/Neutral Switch Input Circuit

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Park/Neutral Switch
– Park/Neutral Switch harness is open or shorted
– Park/Neutral Switch circuit poor electrical connection

Specific Makes:

P084D

Technical Definition:

Transmission Fluid Pressure Sensor / Switch H Circuit High

Trouble Code: P084D
Address: 0x084D
System: Powertrain
Subsystem: Transmission Controls

Technical Description:

Possible Causes:

Possible Symptoms:

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P084E

Technical Definition:

Transmission Fluid Pressure Sensor / Switch H Circuit Intermittent

Trouble Code: P084E
Address: 0x084E
System: Powertrain
Subsystem: Transmission Controls

Technical Description:

Possible Causes:

Possible Symptoms:

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P084F

Technical Definition:

Park / Neutral Switch Output Circuit

Trouble Code: P084F
Address: 0x084F
System: Powertrain
Subsystem:

Technical Description:

Possible Causes:

Possible Symptoms:

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P0848

Technical Definition:

Transmission Fluid Pressure Sensor / Switch B Circuit High

Trouble Code: P0848
Address: 0x0848
System: Powertrain
Subsystem: Transmission Controls

Technical Description:

Possible Causes:

Possible Symptoms:

Transmission Fluid Pressure Sensor/Switch B Circuit High

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P0849

Technical Definition:

Transmission Fluid Pressure Sensor / Switch B Circuit Intermittent

Trouble Code: P0849
Address: 0x0849
System: Powertrain
Subsystem: Transmission Controls

Technical Description:

Possible Causes:

Possible Symptoms:

Transmission Fluid Pressure Sensor/Switch B Circuit Intermittent

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P084A

Technical Definition:

Transmission Fluid Pressure Sensor / Switch H Circuit

Trouble Code: P084A
Address: 0x084A
System: Powertrain
Subsystem: Transmission Controls

Technical Description:

Possible Causes:

Possible Symptoms:

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P084B

Technical Definition:

Transmission Fluid Pressure Sensor / Switch H Circuit Range / Performance

Trouble Code: P084B
Address: 0x084B
System: Powertrain
Subsystem: Transmission Controls

Technical Description:

Possible Causes:

Possible Symptoms:

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P084C

Technical Definition:

Transmission Fluid Pressure Sensor / Switch H Circuit Low

Trouble Code: P084C
Address: 0x084C
System: Powertrain
Subsystem: Transmission Controls

Technical Description:

Possible Causes:

Possible Symptoms:

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P0847

Technical Definition:

Transmission Fluid Pressure Sensor / Switch B Circuit Low

Trouble Code: P0847
Address: 0x0847
System: Powertrain
Subsystem: Transmission Controls

Technical Description:

Possible Causes:

Possible Symptoms:

Transmission Fluid Pressure Sensor/Switch B Circuit Low

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P0843

Technical Definition:

Transmission Fluid Pressure Sensor / Switch A Circuit High

Trouble Code: P0843
Address: 0x0843
System: Powertrain
Subsystem: Transmission Controls

Technical Description:

Possible Causes:

Possible Symptoms:

Transmission Fluid Pressure Sensor/Switch A Circuit High

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P0844

Technical Definition:

Transmission Fluid Pressure Sensor / Switch A Circuit Intermittent

Trouble Code: P0844
Address: 0x0844
System: Powertrain
Subsystem: Transmission Controls

Technical Description:

Possible Causes:

Possible Symptoms:

Transmission Fluid Pressure Sensor/Switch A Circuit Intermittent

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P0845

Technical Definition:

Transmission Fluid Pressure Sensor / Switch B Circuit

Trouble Code: P0845
Address: 0x0845
System: Powertrain
Subsystem: Transmission Controls

Technical Description:

Possible Causes:

Possible Symptoms:

Transmission Fluid Pressure Sensor/Switch B Circuit

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P0846

Technical Definition:

Transmission Fluid Pressure Sensor / Switch B Circuit Range / Performance

Trouble Code: P0846
Address: 0x0846
System: Powertrain
Subsystem: Transmission Controls

Technical Description:

Possible Causes:

Possible Symptoms:

Transmission Fluid Pressure Sensor/Switch B Circuit Range/Performance

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P0840

Technical Definition:

Transmission Fluid Pressure Sensor / Switch A Circuit Malfunction

Trouble Code: P0840
Address: 0x0840
System: Powertrain
Subsystem: Transmission Controls

Technical Description:

Possible Causes:

Possible Symptoms:

Transmission Fluid Pressure Sensor/Switch A Circuit

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

Specific Makes:

P0841

Technical Definition:

Transmission Fluid Pressure Sensor / Switch A Circuit Range / Performance

Trouble Code: P0841
Address: 0x0841
System: Powertrain
Subsystem: Transmission Controls